I purchased three i2367fh IPS panels from AOC a few years ago, one of which had a leaky backlight; But once that was replaced, the new panel began intermittently mudding up the video signal on the left side. AOC wouldn't respond to my warranty requests, and now I'm stuck with it.
It appears the problem affects every other pixel row of the display, which starts around the middle and gets worse when approaching the left side. Oddly enough, the area of the display that is affected by this problem also suffers some kind of electronic burn-in! I have attempted to recreate the symptoms in this image, which should be viewed at a 1:1 ratio:
The exact colors aren't the same as they appear up-close on the monitor, but the effect from 1:1 ratio view is essentially the same.
So far I have swapped the video cable, tried both analog and digital signals, swapped the power supply, and swapped the main controller. The only parts left in question are the board soldered onto the panel and the panel itself. I would prefer not purchase a new LCD. I can solder and I am familiar with basic electronic components. Does anyone know where I should start if I were to pursue this problem further?
Edit: I also should mention that the back-lighting is correct on the monitor.